0=6*cos(x)-cos(3x)

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Solution for 0=6*cos(x)-cos(3x) equation:


Simplifying
0 = 6cos(x) + -1cos(3x)

Multiply cos * x
0 = 6cosx + -1cos(3x)

Remove parenthesis around (3x)
0 = 6cosx + -1cos * 3x

Reorder the terms for easier multiplication:
0 = 6cosx + -1 * 3cos * x

Multiply -1 * 3
0 = 6cosx + -3cos * x

Multiply cos * x
0 = 6cosx + -3cosx

Combine like terms: 6cosx + -3cosx = 3cosx
0 = 3cosx

Solving
0 = 3cosx

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Add '-3cosx' to each side of the equation.
0 + -3cosx = 3cosx + -3cosx
Remove the zero:
-3cosx = 3cosx + -3cosx

Combine like terms: 3cosx + -3cosx = 0
-3cosx = 0

Divide each side by '-3'.
cosx = 0

Simplifying
cosx = 0

The solution to this equation could not be determined.

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